Reenforced wire fabric and method of making the same



July 12, 1932. I A, GREEN REENFORCED V VIRE FABRIC AND METHOD OF MAKINGTHE SAME Filed March 15, 1930 in -Jo. I I 1/ I l v :19

.la 4 l a Patented July 12, 1932 UNITED STATES PATENT OFFICE invme A.GREEN, or woacnsrna, MASSACHUSETTS, assronon TO THE WASHBURN compan orwononsrnn, uassacnosn'r'rs, A ooaronarron or massaonusn'rrsBEENFORCED'WIRE FABRIC AND METHOD OF MAKING THE SAME Application filedMarch 15, 1930. Serial NO. 436,204.

' The present invention relates to a reenforced wire fabric'and methodof making the same, the invention having for its object to provide awire fabric that will be stronger and more durable than wire fabricsheretofore made.

The invention has particular utility in the manufacture of ordinary wirescreening inwhich the warp and weft wires are uniformly spaced, theinvention contemplating the employment of a novel arrangement of warpWires whereby the resulting screening possesses greater strength anddurability than Wire screening heretofore made, in the usual manner.Screening produced b the practice of my invention is particularlyadapted for use in the manufacture of kitchen utensils, such asstrainers and the like, which are subjected to such hard usage asto'bend and deform wire screening of the usual type. The above and otheradvantageous features of my invention will hereinafter more fully appearwith reference to the accompanying drawing in Which V Fig. 1 representsthe arrangement of the warp wires preparatory to weaving the reinforcedfabric of my invention.

Fig. 2 shows a portion of the completely woven fabric.

Fig. 3 is a sectional view along the line 3-3 of Fig. 2, looking inthedirection of the arrows.

Fig. 5 shows a portion of the reenforced wire fabric employed in autensil.

Like reference characters refer to like parts in the different fi ures.

In making a fa ric in accordance with my invention, two sets of warpwires 1a and 1b are-arranged in the healds of the loom, equally spacedfrom each other in accordance with the mesh of the screening which it isdesired to produce. In addition to the equally spaced Warp wires, thereare also provided groups of reenforcing warp wires 2a and 2b which aredisposed at intervals across the warp in accordance with the degree ofreenforcing desired. As shown, the several groups of reenforcing wires2a are threaded throughthe same heald as the regular warp wires 10.while the reenforcing wires 26 are threaded through the same heald asthe wires. 16. ,In weaving the fabric, the weft wires 3 areintroduced-in the. usual manner through the shed each time it is opened,so that the resultingfabric shown in Fig. 2 presents a mesh withopenings of uniform size throughout, except along the groups ofreenforcing warp wires 2a, 2b where the fabric is continuous.

In the weaving, each group of reenforcing warp wires 2a or 21) ishandled as a unit, that is tosay, all the wires 2a are moved in unisonby the heald shafts, while the wires 2b.are moved in -the oppositedirection in opening the shed. Thus the parallel wires 2a of one groupare oppositely bent with re spect to the parallel wires 26 of the adjacent in the completed fabric of Fig. 2, wire fabric made -in accordancewith my invention possesses much greater strength and durability ascompared to wire fabric heretofore constructed with uniform spacingbetween the weft and warp wires. The strengthening effect, resultingfrom the presence of the reenforcing warp wires, is particularlynoticeable when the fabric is bent into rounded form, as in a utensil ofthe strainer type, for then, as indicated in Fig. 5, the reenforcinwires extending across the rounded body 0 the strainer give considerablerigidity to the bowl, particularly when the reenforcing wires aresecured around the rim of the strainer.' Obviously reenforced fabricmade in accordance with my invention possesses many other uses, as forexample in window screens to be used in places where they are liable tobe struck by hard objects.

I claim, i 1. A wire fabric comprising a plurality of equally spacedwarp and weft wires woven to provide a uniform mesh, and groups ofclosely lying parallel warp Wires disposed at intervals between the spacedwarp wir each group com rising a multiplicity of wires of substantialy the same diameter as the weft wires, with all the wires of each grouppassing alternately over and under successive weft wires, and all ofsaid wires passing as a unit on'one side of. each weft wire.

2. An im roved method of making wire fabric whic spaced warp wires withroups of closely lying warp wires disposeg at'intervalsbe tween the warpwires, and then insertin weft wires between the warp wires at equaintervals, the wires of each warp group being I uniformly interwovenwiththe weft wires Ill and being treated as a single warp wire duringweaving.

. IRVING A. GREEN.

consists in providing equally

